1)Memory expand: WIFI card reader insert the mobile power supply or computer,WIFI card reader can spontaneously WIFI signal.
2)TF card slot:support up to 128GB TF card.
3)Supports data sharing through the WIFI data sharing and transmission
4)Compatible with iOS, Android Phone
5)Wireless Card Reader lets you store and access your music, videos, photos, and documents wirelessly on multiple devices.
6)Built-in Battery 700mAh, play time up 6 Hours.